Digital Signage Panel Motion for Afterimage Prevention
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Solution Overview
Problem
Digital signage systems often suffer from afterimages due to static image display, leading to shortened device lifetimes and obstructed advertisement effectiveness.
Innovation Solution
The system moves the display panel to prevent afterimages by controlling its direction and speed based on various factors such as content type, temperature, and user interaction, using a controller to manage panel movements and content changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If static pictures or images are frequently output on the digital signage, then advertisement content can be displayed for a long time, but afterimage occurs and device lifetime is shortened
Solution Approach 1:
The patent implements periodic movement of the display panel at predetermined intervals during content playback. This periodic action prevents afterimage by periodically changing the physical position of the panel, thereby distributing wear and preventing persistent image retention on the same physical location of the panel.
Solution Approach 2:
The patent transitions from a static display panel to a dynamic one by enabling movement in multiple directions (horizontal, vertical, diagonal, rotational). This dynamic capability allows the panel to change position during content display, preventing afterimage while maintaining long-term operational reliability.
2Reliability
If the display panel is moved frequently to prevent afterimage, then afterimage occurrence is reduced, but power consumption increases
Solution Approach 1:
The patent applies partial movement rather than continuous movement by selecting specific movement types (horizontal, vertical, diagonal, or rotational) based on content characteristics and panel state. This partial action approach prevents afterimage effectively while minimizing unnecessary power consumption from excessive panel movements.
Solution Approach 2:
The patent changes movement parameters (direction, speed, duration, frequency) dynamically based on content type, panel temperature, and cumulative playback time. This adaptive parameter adjustment optimizes the balance between afterimage prevention effectiveness and power consumption efficiency.
3Duration of action of stationary object
If the display panel is moved to prevent afterimage, then device lifetime is extended, but device complexity increases
Solution Approach 1:
The patent introduces movement capabilities to the previously static display panel, enabling it to change position and orientation during operation. This dynamic feature extends device lifetime by preventing afterimage and uniform wear, though it increases structural and control complexity.
Solution Approach 2:
The patent implements multiple movement modes (horizontal, vertical, diagonal, rotational) that can be selectively applied based on different content types and operational conditions. This multi-functionality approach extends device lifetime through adaptive movement while managing complexity by using a unified control framework for all movement types.
Data Source
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AI summary
A digital signage including a display panel configured to display content; a controller configured to: display first content in a first area of the display panel, obtain display panel control data for preventing an afterimage, based on received afterimage-related data, and move the display panel a predetermined amount and display the first content in a second area of the display panel based on the display panel control data.